Decorative oil lamp



FIG. 1 is a top isometric view of my invention showing my new design;

FIG. 2 is a right side view of my invention;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a top view;

FIG. 5 is a bottom view of my invention; and,

FIG. 6 is a cross-sectional view thereof, taken along the line6—6 ofFIG. 4.

The ornamental design for a decorative oil lamp, as shown and described.